Power transmission system of hybrid electric vehicle
a technology of hybrid electric vehicles and transmission systems, applied in mechanical devices, transportation and packaging, gearing, etc., can solve the problems of high fuel consumption, achieve the effects of reducing electric load and capacity of motors/generators, reducing mechanical power delivery paths, and minimizing impa
Active Publication Date: 2017-07-11
HYUNDAI MOTOR CO LTD
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- Abstract
- Description
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Benefits of technology
The present invention is a power transmission system for hybrid electric vehicles that reduces the impact of torque changes when switching to hybrid mode and reduces the load and capacity of the motor / generator by prioritizing mechanical power delivery path. This system also provides engine modes that allow the vehicle to run without consuming electric energy, resulting in improved fuel efficiency during high-speed travel.
Problems solved by technology
A torque delivery apparatus such as clutches and brakes for shift control is not necessary, but fuel consumption is high due to deterioration of efficiency at a high-speed region and an additional torque multiplication device is required for being applied to a large vehicle according to the single-mode type.
Method used
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[0052]Reference will now be made in detail to various embodiments of the present invention(s), examples of which are illustrated in the accompanying drawings and described below. While the invention(s) will be described in conjunction with exemplary embodiments, it will be understood that the present description is not intended to limit the invention(s) to those exemplary embodiments. On the contrary, the invention(s) is / are intended to cover not only the exemplary embodiments, but also various alternatives, modifications, equivalents and other embodiments, which may be included within the spirit and scope of the invention as defined by the appended claims.
[0053]Description of components that are not necessary for explaining various exemplary embodiments will be omitted, and the same constituent elements are denoted by the same reference numerals in this specification.
[0054]In the detailed description, ordinal numbers are used for distinguishing constituent elements having the same ...
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A power transmission system of a hybrid electric vehicle which uses an engine and first and second motor / generators as power sources may include an input shaft receiving torque of the engine, an intermediate shaft parallel with and apart from the input shaft, an output shaft relatively rotatable with respect to the intermediate shaft, a first planetary gear set including a first rotation element, a second rotation element, and a third rotation element, a second planetary gear set including a fourth rotation element, a fifth rotation element, and a sixth rotation element, a first transfer gear connecting the second rotation element with the output shaft, a second transfer gear connecting the input shaft or the first rotation element with the sixth rotation element, and a first clutch selectively connecting two rotation elements among three rotation elements of the second planetary gear set.
Description
CROSS-REFERENCE TO RELATED APPLICATION[0001]The present application claims priority to Korean Patent Application No. 10-2013-0143255 filed Nov. 22, 2013, the entire contents of which is incorporated herein for all purposes by this reference.BACKGROUND OF THE INVENTION[0002]Field of the Invention[0003]The present invention relates to a power transmission system of a hybrid electric vehicle. More particularly, the present invention relates to a power transmission system of a hybrid electric vehicle which minimizes impact due to torque change of a motor / generator when being converted into a hybrid operating mode and reduces electric load and capacity of the motor / generator by giving more importance to mechanical power delivery path when splitting engine power.[0004]Description of Related Art[0005]Environmentally-friendly technique of vehicles is a very important technique on which survival of future motor industry is dependent. Vehicle makers are focusing on development of environmenta...
Claims
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IPC IPC(8): F16H3/46B60K6/445F16H3/66F16H3/72B60K6/547B60K6/365B60K6/387B60K6/48
CPCF16H3/46B60K6/365B60K6/387B60K6/445B60K6/547F16H3/66F16H3/728B60K2006/4808F16H2200/0043F16H2200/2007F16H2200/2041Y02T10/6239Y10S903/902Y02T10/62B60K6/26B60K6/36B60W10/10F16H3/44F16H3/72
Inventor LEE, CHANG WOOKSEO, KANGSOOKOOK, JAE CHANGPARK, JONGSOOLHWANG, DONG HWAN
Owner HYUNDAI MOTOR CO LTD